Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
526
CALL
US Bancorp Series B Preferred Stock
USB.PRH
$744M
| $18.7M | 0.02% |
406,000
+43,500
| +12% | +$864K |
|
527
PUT
Clorox
CLX
$11.3B
| $18.7M | 0.02% |
132,500
+59,200
| +81% | +$8.46M |
|
528
PUT
Prologis
PLD
$135B
| $18.7M | 0.02% |
158,600
+70,600
| +80% | +$9.76M |
|
529
CALL
CarMax
KMX
$8.29B
| $18.6M | 0.02% |
206,100
+5,000
| +2% | +$470K |
|
530
CALL
Halliburton
HAL
$27.3B
| $18.6M | 0.02% |
618,900
+83,100
| +16% | +$3.1M |
|
531
CALL
Albemarle
ALB
$13.8B
| $18.6M | 0.02% |
88,900
+25,000
| +39% | +$5.58M |
|
532
Bristol-Myers Squibb
BMY
$126B
| $18.6M | 0.02% |
241,059
+240,884
| +137,648% | +$18.3M |
|
533
CALL
Spotify
SPOT
$96.4B
| $18.6M | 0.02% |
197,800
+29,800
| +18% | +$3.36M |
|
534
CALL
Vanguard FTSE Europe ETF
VGK
$29.8B
| $18.5M | 0.02% |
409,300
+102,100
| +33% | +$5.92M |
|
535
PUT
Robinhood
HOOD
$91.2B
| $18.5M | 0.02% |
2,249,700
+329,700
| +17% | +$3.21M |
|
536
PUT
RH
RH
$3.14B
| $18.4M | 0.02% |
86,800
-19,400
| -18% | -$5.76M |
|
537
CALL
Cloudflare
NET
$93.1B
| $18.4M | 0.02% |
421,000
+97,700
| +30% | +$7.04M |
|
538
CALL
Linde
LIN
$234B
| $18.3M | 0.02% |
63,800
-8,200
| -11% | -$2.56M |
|
539
CALL
DoorDash
DASH
$74B
| $18.3M | 0.02% |
285,800
+6,900
| +2% | +$548K |
|
540
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$294M
| $18.3M | 0.02% |
+699,821
| New | +$17.8M |
|
541
CALL
Constellation Brands
STZ
$22.1B
| $18.3M | 0.02% |
78,500
-7,900
| -9% | -$1.92M |
|
542
PUT
Teladoc Health
TDOC
$1.56B
| $18.3M | 0.02% |
550,200
-211,400
| -28% | -$8.98M |
|
543
PUT
Rivian
RIVN
$23.8B
| $18.2M | 0.02% |
709,000
-398,900
| -36% | -$12.5M |
|
544
PUT
General Mills
GIS
$19B
| $18.2M | 0.02% |
241,800
+123,100
| +104% | +$8.62M |
|
545
PUT
Teck Resources
TECK
$29.4B
| $18.2M | 0.02% |
596,700
-149,000
| -20% | -$5.88M |
|
546
PUT
HSBC
HSBC
$349B
| $18.2M | 0.02% |
557,400
+359,400
| +182% | +$11.7M |
|
|
K
547
CALL
DELISTED
Kellanova
K
| $18.1M | 0.02% |
269,978
+123,753
| +85% | +$8.04M |
|
|
EXE
548
CALL
Expand Energy Corp
EXE
$21.9B
| $18.1M | 0.02% |
222,900
+145,200
| +187% | +$13.1M |
|
|
ATVI
549
DELISTED
Activision Blizzard
ATVI
| $18.1M | 0.02% |
231,970
-19,954
| -8% | -$1.55M |
|
550
CALL
Southern Company
SO
$109B
| $18M | 0.02% |
253,100
+151,500
| +149% | +$11.1M |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.